"Read, create, merge, split, rotate, watermark, fill forms, extract text/tables, OCR scanned PDFs"
"Read, create, merge, split, rotate, watermark, fill forms, extract text/tables, OCR scanned PDFs"
npx skills add https://github.com/OyaAIProd/oya-agent-web-dev-assistant --skill pdf复制此命令并粘贴到 Claude Code 中以安装该技能
Style artifacts with professional themes — 10 pre-set color/font themes for slides, docs, reports, landing pages, or generate custom themes
Build elaborate multi-component web artifacts using React, Tailwind CSS, and shadcn/ui — bundled into a single HTML file
| name | |
| display_name | PDF Processing |
| description | Read, create, merge, split, rotate, watermark, fill forms, extract text/tables, OCR scanned PDFs |
| category | general |
| icon | file-text |
| skill_type | sandbox |
| catalog_type | addon |
| tool_schema | {"name":"pdf","description":"Process PDF files — extract text/tables, create PDFs, merge/split, rotate, fill forms, add watermarks, OCR scanned documents","parameters":{"type":"object","properties":{"action":{"type":"string","description":"Operation to perform","enum":["extract_text","extract_tables","create_pdf","merge_pdfs","split_pdf","rotate_pages","fill_form","check_form_fields","add_watermark","extract_images","ocr","get_metadata"]},"file_path":{"type":"string","description":"Path to the input PDF file"},"output_path":{"type":"string","description":"Path for the output file (default: auto-generated)"},"pages":{"type":"string","description":"Page range — e.g. '1-5', '1,3,5', 'all' (default: all)"},"text":{"type":"string","description":"Markdown-formatted content for create_pdf. Supports: # H1, ## H2, ### H3, **bold**, *italic*, `code`, [links](url), - bullet lists, 1. numbered lists, > blockquotes, ```code blocks```, | tables |, --- page breaks"},"title":{"type":"string","description":"Document title for create_pdf"},"subtitle":{"type":"string","description":"Subtitle shown below the title"},"author":{"type":"string","description":"Author name shown in the header metadata"},"date":{"type":"string","description":"Date string shown in the header metadata (e.g. 'March 2026')"},"rotation":{"type":"integer","description":"Rotation degrees for rotate_pages (90, 180, 270)"},"files":{"type":"string","description":"Comma-separated file paths for merge_pdfs"},"field_values":{"type":"string","description":"JSON object of field_id:value pairs for fill_form"},"theme":{"type":"string","description":"JSON theme object for create_pdf styling — {primary_color, body_color, accent_color, muted_color, heading_color, code_bg, bg_color, title_font, body_font, heading_font, title_size, heading_size, body_size}. Get from theme_factory skill."}},"required":["action"]}} |
When creating PDFs with create_pdf, ALWAYS apply a theme for professional styling. If the theme_factory skill is available:
theme_factory(action='list_themes') to see available themestheme_factory(action='get_theme', theme_name='...') to get the theme detailstheme parameter to pdf(action='create_pdf', theme='{"primary_color": "...", "accent_color": "...", ...}')If theme_factory is not available, use a built-in professional theme:
{"primary_color": "#1a1a2e", "body_color": "#2d2d3f", "accent_color": "#4f46e5", "muted_color": "#6b7280", "heading_color": "#1a1a2e", "code_bg": "#f3f4f6", "title_font": "Helvetica-Bold", "body_font": "Helvetica", "heading_font": "Helvetica-Bold", "title_size": 26, "heading_size": 16, "body_size": 10}
NEVER create a PDF without a theme parameter — unstyled PDFs look unprofessional.
This guide covers essential PDF processing operations using Python libraries and command-line tools. For advanced features, JavaScript libraries, and detailed examples, see REFERENCE.md. If you need to fill out a PDF form, read FORMS.md and follow its instructions.
from pypdf import PdfReader, PdfWriter
# Read a PDF
reader = PdfReader("document.pdf")
print(f"Pages: {len(reader.pages)}")
# Extract text
text = ""
for page in reader.pages:
text += page.extract_text()
from pypdf import PdfWriter, PdfReader
writer = PdfWriter()
for pdf_file in ["doc1.pdf", "doc2.pdf", "doc3.pdf"]:
reader = PdfReader(pdf_file)
for page in reader.pages:
writer.add_page(page)
with open("merged.pdf", "wb") as output:
writer.write(output)
reader = PdfReader("input.pdf")
for i, page in enumerate(reader.pages):
writer = PdfWriter()
writer.add_page(page)
with open(f"page_{i+1}.pdf", "wb") as output:
writer.write(output)
reader = PdfReader("document.pdf")
meta = reader.metadata
print(f"Title: {meta.title}")
print(f"Author: {meta.author}")
print(f"Subject: {meta.subject}")
print(f"Creator: {meta.creator}")
reader = PdfReader("input.pdf")
writer = PdfWriter()
page = reader.pages[0]
page.rotate(90) # Rotate 90 degrees clockwise
writer.add_page(page)
with open("rotated.pdf", "wb") as output:
writer.write(output)
import pdfplumber
with pdfplumber.open("document.pdf") as pdf:
for page in pdf.pages:
text = page.extract_text()
print(text)
with pdfplumber.open("document.pdf") as pdf:
for i, page in enumerate(pdf.pages):
tables = page.extract_tables()
for j, table in enumerate(tables):
print(f"Table {j+1} on page {i+1}:")
for row in table:
print(row)
import pandas as pd
with pdfplumber.open("document.pdf") as pdf:
all_tables = []
for page in pdf.pages:
tables = page.extract_tables()
for table in tables:
if table: # Check if table is not empty
df = pd.DataFrame(table[1:], columns=table[0])
all_tables.append(df)
# Combine all tables
if all_tables:
combined_df = pd.concat(all_tables, ignore_index=True)
combined_df.to_excel("extracted_tables.xlsx", index=False)
from reportlab.lib.pagesizes import letter
from reportlab.pdfgen import canvas
c = canvas.Canvas("hello.pdf", pagesize=letter)
width, height = letter
# Add text
c.drawString(100, height - 100, "Hello World!")
c.drawString(100, height - 120, "This is a PDF created with reportlab")
# Add a line
c.line(100, height - 140, 400, height - 140)
# Save
c.save()
from reportlab.lib.pagesizes import letter
from reportlab.platypus import SimpleDocTemplate, Paragraph, Spacer, PageBreak
from reportlab.lib.styles import getSampleStyleSheet
doc = SimpleDocTemplate("report.pdf", pagesize=letter)
styles = getSampleStyleSheet()
story = []
# Add content
title = Paragraph("Report Title", styles['Title'])
story.append(title)
story.append(Spacer(1, 12))
body = Paragraph("This is the body of the report. " * 20, styles['Normal'])
story.append(body)
story.append(PageBreak())
# Page 2
story.append(Paragraph("Page 2", styles['Heading1']))
story.append(Paragraph("Content for page 2", styles['Normal']))
# Build PDF
doc.build(story)
IMPORTANT: Never use Unicode subscript/superscript characters (₀₁₂₃₄₅₆₇₈₉, ⁰¹²³⁴⁵⁶⁷⁸⁹) in ReportLab PDFs. The built-in fonts do not include these glyphs, causing them to render as solid black boxes.
Instead, use ReportLab's XML markup tags in Paragraph objects:
from reportlab.platypus import Paragraph
from reportlab.lib.styles import getSampleStyleSheet
styles = getSampleStyleSheet()
# Subscripts: use <sub> tag
chemical = Paragraph("H<sub>2</sub>O", styles['Normal'])
# Superscripts: use <super> tag
squared = Paragraph("x<super>2</super> + y<super>2</super>", styles['Normal'])
For canvas-drawn text (not Paragraph objects), manually adjust font the size and position rather than using Unicode subscripts/superscripts.
# Extract text
pdftotext input.pdf output.txt
# Extract text preserving layout
pdftotext -layout input.pdf output.txt
# Extract specific pages
pdftotext -f 1 -l 5 input.pdf output.txt # Pages 1-5
# Merge PDFs
qpdf --empty --pages file1.pdf file2.pdf -- merged.pdf
# Split pages
qpdf input.pdf --pages . 1-5 -- pages1-5.pdf
qpdf input.pdf --pages . 6-10 -- pages6-10.pdf
# Rotate pages
qpdf input.pdf output.pdf --rotate=+90:1 # Rotate page 1 by 90 degrees
# Remove password
qpdf --password=mypassword --decrypt encrypted.pdf decrypted.pdf
# Merge
pdftk file1.pdf file2.pdf cat output merged.pdf
# Split
pdftk input.pdf burst
# Rotate
pdftk input.pdf rotate 1east output rotated.pdf
# Requires: pip install pytesseract pdf2image
import pytesseract
from pdf2image import convert_from_path
# Convert PDF to images
images = convert_from_path('scanned.pdf')
# OCR each page
text = ""
for i, image in enumerate(images):
text += f"Page {i+1}:\n"
text += pytesseract.image_to_string(image)
text += "\n\n"
print(text)
from pypdf import PdfReader, PdfWriter
# Create watermark (or load existing)
watermark = PdfReader("watermark.pdf").pages[0]
# Apply to all pages
reader = PdfReader("document.pdf")
writer = PdfWriter()
for page in reader.pages:
page.merge_page(watermark)
writer.add_page(page)
with open("watermarked.pdf", "wb") as output:
writer.write(output)
# Using pdfimages (poppler-utils)
pdfimages -j input.pdf output_prefix
# This extracts all images as output_prefix-000.jpg, output_prefix-001.jpg, etc.
from pypdf import PdfReader, PdfWriter
reader = PdfReader("input.pdf")
writer = PdfWriter()
for page in reader.pages:
writer.add_page(page)
# Add password
writer.encrypt("userpassword", "ownerpassword")
with open("encrypted.pdf", "wb") as output:
writer.write(output)
| Task | Best Tool | Command/Code |
|---|---|---|
| Merge PDFs | pypdf | writer.add_page(page) |
| Split PDFs | pypdf | One page per file |
| Extract text | pdfplumber | page.extract_text() |
| Extract tables | pdfplumber | page.extract_tables() |
| Create PDFs | reportlab | Canvas or Platypus |
| Command line merge | qpdf | qpdf --empty --pages ... |
| OCR scanned PDFs | pytesseract | Convert to image first |
| Fill PDF forms | pdf-lib or pypdf (see FORMS.md) | See FORMS.md |